open file.xml ;
for //text() {
    if xsh:matches(., '\S')
        echo concat(name(..), ':') (.) ;
}

##</code><code>##

Date: 2003/07/04
CustomerId: 123
CustomerName: Acme Alpha
ItemId:  987
ItemName: Coupler
Quantity: 5
ItemId: 579
ItemName: Clasp
Quantity: 1